aunumero73 Over on YouTube has posted a video illustrating the difference in FM Selectivity on the FunCube Dongle Pro+ and a R820T tuner based RTL-SDR. The FunCube Dongle has an expected performance advantage over the RTL-SDR but one must consider the price difference ($190 vs ~$20) between these two devices.

If you’re looking for a dongle to use as an RTL-SDR, check our page on where to buy rtlsdr tuners.